To transfer the infrastructure master role in Active Directory, follow these steps: 
- Open the Active Directory Sites and Services console.
 - Navigate to the domain controllers node.
 - Check the current FSMO role holders in the PDC.
 - If necessary, transfer the Infrastructure Master FSMO role to a special domain controller following the guidelines below:
t- tt
 - The Infrastructure Master should never be installed on the same domain controller as the primary domain controller. tt
 - The domain controller on which the Infrastructure Master is installed should be Global Catalog and have Global Catalog sites. t
 
 - Test to ensure that the FSMO role has successfully been transferred to the new role owner.
 
